Figure 7: Standard Vented Heater - Common Vertical Vent Termination - Bananza UHAT150 Installation, Operation & Service Manual

Uha-series tubular unit heaters (standard range)
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UHA S
U
H
TANDARD
NIT
EATER

Figure 7: Standard Vented Heater - Common Vertical Vent Termination

SIDE VIEW
The last section of vent pipe passing
through the roof or wall may be Type
"B" vent pipe. All other vent materials
in the building must be single wall
vent pipe.
TOP VIEW
Requirements:
• Maximum of four heaters can be commonly vented through the roof.
• Heaters must be of the same BTU output.
• Heaters must be controlled by a common thermostat.
• Connections to a common stack must be positioned to avoid direct opposition between streams of
combustion gases.
14 of 59
I
O
NSTALLATION
PERATION AND
2'(.6 m)
Minimum
4" (10 cm)
Single Wall Pipe
S
M
ERVICE
ANUAL
Type "B" vent cap
(7" [18 cm] or 8" [20 cm]) may be
used. (These are not available
from the manufacurer.)
Type "B" Vent Pipe
Roof
Flashing
Roof
Approved
Thimble
(If Applicable)
Single Wall Pipe
"D"
"D" Area must equal sum
of open area of
individual vents.
4" (10 cm)
Single Wall Pipe

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